baber/WOPTO huggingface dataset:
Patent EP-0319260-A2 (EP)
Inventor: BUCKLEY CHRISTOPHER ANDREW
IPC: C01C1/18
Filed: 1988-11-30
Abstract: A process for removing an ammonium salt such as ammonium nitrate from an aqueous medium containing the salt includes the steps of:
     (i) providing a membrane cell in which the anode and cathode compartments are separated from each other by an anion selective membrane,   (ii) passing the ammonium salt rich aqueous medium through the cathode compartment,   (iii) passing an alkali solution through the anode compartment of the membrane cell, the alkali solution containing cations which will form a salt with the anion of the ammonium salt, and   (iv) passing an electrical direct current through the cell thereby causing the anions of the ammonium salt in the cathode compartment to pass through the anion selective membrane into the anode compartment.   
     The alkali solution is preferably calcium hydroxide. The aqueous medium is typically an effluent.
Patent EP-0325857-A2 (EP)
Inventor: BIFULK EDWARD J
IPC: B24D3/20
Filed: 1988-12-16
Abstract: A dental curette hone (11) consisting of a ceramic made from particulate aluminum oxide abrasive. The hone having a curved elongated edge (17) and a flat elongated surface (12). The curved elongated edge having a radius of approximately 1/32 to about 3/32 inch. The ceramic block being made by forming a mixture of particulate aluminum oxide having an irregular particle shape and a selected particle size with magnesium oxide. Then shaping each block by extruding or molding. The block is then heated to form a fused ceramic block. The block is next tumbled to remove irregularities from the elongated edge and flat surface after which the block is polished to form a polished surface on exposed particles of aluminum oxide. The polished surfaces of said particles intersect irregular sides of said particles to form cutting edges on said particle for sharpening the curette.
Patent EP-0325229-A2 (EP)
Inventor: HASHIMOTO TAKESHI C O MINOLTA
IPC: G03B17/18
Filed: 1989-01-18
Abstract: A display system for a camera which can make a display of a focal length of the camera on an existing display device for display of a photographing frame count of a film without provision of an additional display device and without increasing the number of display segments of the existing display device. The display system comprises a display means (11), a first display control means (12) for controlling the display means to display a frame count of a film, a taking lens (1) having a variable focal length, a detecting means for detecting a focal length of the taking lens, a second display control means for controlling the display means to display the focal length of the taking lens detected by the detecting means, and a changing means (13) for alternatively rendering the first or second display control means effective. The display means thus normally displays a current frame count of a film in the camera but displays a current focal length of the taking lens, for example, when the focal length of the taking lens is being varied.
Patent EP-0328012-A2 (EP)
Inventor: WESSLING RITCHIE A
IPC: C08F12/04
Filed: 1989-02-04
Abstract: Microporous, asymmetric membranes from syndiotactic vinylaromatic polymers having utility as membranes for ultrafiltration or reverse osmosis are disclosed.
Patent EP-0337124-A2 (EP)
Inventor: HOSCHELER ARNULF
IPC: F15B11/044
Filed: 1989-03-10
Abstract: A hydrostatic transmission (1) having a pump (2) and a hydraulic motor (3) which are arranged in a main line (4), an oil leakage line (23) of the hydraulic motor (3) being connected to the low-pressure line (6) of the main line (4), is to be designed such that the housing of the hydraulic motor (3) is released from unacceptably high pressures of the main line (4). This is achieved by a valve (25) with an adjustable flow cross-section being arranged in the flow direction (arrow 30) in front of the line connection (31) of the oil leakage line (23), which valve (25) reduces the flow cross-section as the pressure in the main line (4) increases. 
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Patent EP-0353421-A2 (EP)
Inventor: TKAZYIK WILLIAM JOHN
IPC: H01R12/70
Filed: 1989-06-08
Abstract: Edge design for a printed circuit board (25) used with a connector (10) having spring biased contact members (23). The printed circuit board has a nose piece (26) bonded thereon which is made of a lubritious, insulating material for deflecting the spring biased contact members without cousing damage to the members or the electrical contacts (36) thereon. In a preferred embodiment, each spring biased member is fixed in the connector at one end (35) and has a bent portion (34) with an electrical contact (36) on the bent portion. The electrical contact is in a impact protected position when its spring biased member is undeflected, and moves to a contact making position for contact with an input/output tab on the printed circuit board as the spring biased member is deflected around its fixed end during the plugging in operation of the printed circuit board.
Patent EP-0355333-A2 (EP)
Inventor: OHMS FRANZ DIPL-ING
IPC: H02M3/156
Filed: 1989-07-01
Abstract: A sawtooth-shaped signal of constant amplitude (USK) as well as a signal proportional to the current (IO) across the final control element (S1) are fed to the pulse width modulator (PBM) of a switch regulator. This measure ensures a sufficient stability of the switch regulator. …<??>To suppress optimally interference components on the input direct voltage (UE) of the switch regulator, a further signal (USV) whose amplitude depends on the input voltage of the switch regulator is fed to the pulse width modulator (PBM). The switch regulator is operated in such a manner that the arithmetic mean of the current remains statically constant as a result of the inductance (L) of the switch regulator. …<IMAGE>…
Patent EP-0364673-A2 (EP)
Inventor: KRAUSE KLAUS-DIETHER
IPC: B02C18/00
Filed: 1989-07-07
Abstract: A housing for a paper shredder with a slit-like paper feed disposed on one side of the housing and a slit-like paper discharge disposed on the opposite side of the housing. The housing has an elongated shape, the dimension of length being a multiple of the dimension in width, where on each narrow side of the paper discharge support surfaces are disposed, with which the paper shredder can be placed on a waste receptacle. The width of the support surface is selected such, that one of the support surfaces is considerably larger than the width of the edge of the waste receptacle, while the other support surface has a width only negligibly greater than the width of the edge of the waste receptacle. It is additionally possible to provide a clamping device in the area of one support surface as security against sliding of the paper shredder placed on the waste receptacle.
Patent EP-0350831-A2 (EP)
Inventor: FORSTER SIEGFRIED DR
IPC: F23R3/00
Filed: 1989-07-10
Abstract: For a combustion chamber, a ceramic lining, with cavities present in the lining, is indicated. The lining (1) is delimited towards the combustion chamber (11) by means of an inner wall (2) with low heat capacity (Figure 1). Between inner wall (2) and outer wall (3) of the lining, supports (4) are provided, which serve to reinforce the lining and are dimensioned according to the pressure arising in the combustion chamber. Preferably, the supports are honeycombed. 
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Patent EP-0356997-A2 (EP)
Inventor: GAWIN FRANK H
IPC: A61K31/505
Filed: 1989-08-29
Abstract: The present invention relates to the use of azapirone compounds for preparing pharmaceutical compositions for the treatment of substance addiction, comprising over-eating, eating disorders, habitual use of tobacco, marihuana, cocaine, opiates, methadone, amphetamines, methylphenidate and related designer drugs and other recreational drugs.
Patent EP-0364878-A2 (EP)
Inventor: EISERMANN ARMIN
IPC: E05B17/22
Filed: 1989-10-12
Abstract: The invention relates to a locking device on doors equipped with an inner and an outer fitting (2, 3) and a lock (5) arranged between the two fittings and actuable from inside and outside and, to achieve a substantial benefit in terms of use to the effect that remote call-up of the locking state and/or storage of locking operations which have taken place is possible, proposes, whilst ensuring a simple constructional form, that there be at least one switch disc (19, 19a) taken up during the actuation of the lock and a contact or switch (S1, S2) assigned to the latter for generating electrical recording signals relating to the lock actuation, and/or that an inner and an outer call-up should take place. 
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Patent EP-0375873-A2 (EP)
Inventor: SCHMITTMANN HEINRICH DIPL-ING
IPC: F16J3/04
Filed: 1989-10-24
Abstract: A fastening (10) of a bellows (11), for example for sealing a rod which is led out of a machine housing (18). The bellows (11) are retained by a retaining flange (15) and are sealed. The retaining flange (15) is retained on a supporting ring (12), which is located radially internally and has supporting ring slots (13, 14) on its outer circumference (32). The retaining flange (15) is provided with a radially inwardly directed retaining bead (16) and with a radially outwardly directed sealing cone (17). In its housing opening (34), the housing (18) has a radially outwardly directed inner slot (24) and the retaining bead (16) can be brought into effective connection with a supporting ring slot (14) and the sealing cone (17) can be brought into effective connection with the inner slot (24). <IMAGE>
Patent EP-0367184-A2 (EP)
Inventor: UDA YOSHIHIRO C O NEC CORPORAT
IPC: H04B10/2507
Filed: 1989-10-30
Abstract: First (2) and second (20) photoelectric converting circuits are provided to be connected to first (11) and second (12) input terminals of a differential amplifier, respectively. The first and second photoelectric converting circuits are optically coupled to a common optical fiber, so that first and second electric signals which are reverse in polarity are supplied to the first and second input terminals. Consequently, noise superposed, for instance, on a power supply line is supplied through the first and second photoelectric converting circuits to the first and second input terminals of the differential amplifier with the same phase as each other, so that the noises are cancelled in the differential amplifier.
Patent EP-0323876-A2 (EP)
Inventor: HARDEE KIM C
IPC: G11C11/419
Filed: 1984-08-24
Abstract: Column circuitry in a semiconductor memory comprises for each column a respective differential amplifier (40) coupled between read lines (24.26) and a pasir of bit lines (14,16) each differential amplifier (40) being responsive to an associated column select signal to provide output signals on the read lines (24,26) representative of data stored in one of the memory cells (12) in the corresponding column when selected, and sneak capacitance reduction transistor (66) coupled between the pair of bit lines (14,16) in each of the columns and responsive to a column select signal for coupling together the pair of bit lines in a corresponding column when the corresponding column is not selected.
Patent EP-0332416-A2 (EP)
Title: Regulation of expression in mammalian cells
Inventor: LIVINGSTON DAVID M
IPC: C12N15/85
Filed: 1989-03-08
Abstract: Synthesis of a desired protein in a mammalian cell is regulated by transfecting the cell with a eukaryotic promoter coupled to a DNA sequence encoding a prokaryotic repressor, transfecting the cell with a prokaryotic operator linked to a DNA sequence encoding the desired protein and a promoter driving the transcription of the protein-encoding DNA sequence, the operator and the repressor-encoding DNA sequence being functional in the cell, and culturing the cell in the presence or absence of a substance that binds the repressor.
Patent EP-0338701-A2 (EP)
Inventor: AUDRETSCH WERNER
IPC: A61F2/12
Filed: 1989-04-07
Abstract: The specification describes and claims a tissue expander capable of insertion in a human body to induce formation of a pocket into which a mammary prosthesis may be inserted comprising (a) an expander portion (12,102) which is flaccid and is adapted to be inflated progressively in the body to induce formation of said pocket, (b) a support plate portion (14,114) which is sufficiently flexible that it may be bent or folded upon itself for insertion into or removal from the body through an incision in the body and to recover to a plate-like condition within the body, (c) feed tube means (20,120) attached to the expander portion (12, 102) and having a valve (24,124) through which inflating medium may be supplied into the expander portion (12, 102), and (d) releasable securing means (18, 30, 118, 130) whereby the support portion (10, 100) and the expander portion (12, 102) are connected together until it is desired to release the expander portion (12, 102) from the support portion (10, 100). Preferably the releasable securing means (18, 30, 118, 130) comprises snap fastener means, a male portion (30, 130) of the snap fastener means being secured to the expander portion (12, 102) and a female portion (18, 118) of said snap fastener means being secured to the support portion (10, 100). The releasable securing means (18, 30, 118, 130) facilitates location of the expander portion (12, 102) and the valve (24, 124), and permits detachment of the expander portion (12, 102) from the support portion (10, 100) as desired. The support portion (10, 100) supports the expander portion (12, 102) in the body and resists contraction of the fibrous capsule produced as scar tissue forms. It also forms a substantially flat wall for the developing pocket and provides a pressure plate which serves to ensure that expansion of tissue, induced by inflation of the expander portion (12, 102), takes place in a direction outwardly of the body.
Patent EP-0337764-A2 (EP)
Inventor: DIETLEIN JAMES EARL
IPC: C08K13/06
Filed: 1989-04-12
Abstract: A self-leveling silicone composition, which is useful as a sealant in contact with asphalt, cures upon exposure to moisture in the atmosphere to an elastomer having an elongation of at least 1200 percent and a modulus at both 50 and 100 percent elongation of less than 25 pounds per square inch. The composition consists essentially of a hydroxyl endblocked polydiorganosiloxane, non-acidic, non-reinforcing treated filler, diacetamido functional silane, aminoxysilicone crosslinking compound and non-reactive silicone fluid diluent.
Patent EP-0341023-A2 (EP)
Inventor: BRODY JOHN FRANCIS
IPC: C07C5/25
Filed: 1989-05-02
Abstract: A process for catalytic cracking, isomerizing of reforming of a hydrocarbon feed stock comprises the step of passing said hydrocarbon feed stock through a catalyst bed at cracking, isomerizing or reforming conditions to crack, isomerize or reform said hydrocarbon feed stock, wherein the catalyst composition in the catalyst bed, comprises a pillared fluorotetrasilicic mica, wherein said pillared fluorotetrasilicic mica has a specific surface area exceeding 75 m²/gm, wherein the mica is pillared by alumina, zirconia or chromia, and the aluminum, zirconium or chromium content is at least 8% by weight. In the catalytic cracking process, there is less carbon and hydrogen formed than in comparative processes, and the cracked product contains a relatively high proportion of C₃ and C₄ olefins.
Patent EP-0348069-A2 (EP)
Inventor: CUNNINGHAM DOUGLAS JAMES
IPC: B60J7/043
Filed: 1989-06-07
Abstract: An opening roof for a motor vehicle has a panel (22) mounted on guide tracks (16, 18) which are secured to the vehicle roof (10) so as to extend along opposite sides of an opening therein, the panel (22) being moveable along the guide tracks (16, 18) between a closed position in alignment with the opening and an open position in which it substantially overlaps the vehicle roof (10) adjacent to the opening. A transverse member (12) extends between the guide tracks (16, 18) in front of the opening, and a pair of mutually parallel guide channels is formed in each guide track (16, 18) and in the transverse member (12) in the same horizontal plane so as to form two continuous guide paths for first and flexible cables (32, 38) respectively. The first cable (32) is connected to the panel (22) on one side of the opening and the second cable (38) is connected to the panel (22) on the other side of the opening. Drive means (40) on the transverse member (12) engages with the cables (32, 38) so as to cause simultaneous movement thereof in opposite directions.
Patent EP-0353004-A2 (EP)
Inventor: ALEXANDER BILLY RAY
IPC: B23B23/02
Filed: 1989-07-24
Abstract: An adjustable precision live centre (11) is provided for use with lathes (15) having a spindle (43) housing slidably interlocking with a shank block (39) by operation of a dovetail tenon (50) mated to a dovetail mortise of said shank block. A spindle (43) is rotatably coupled to the spindle housing (41), extending rearward through the dovetail tenon (50) of the spindle housing (41). Precision adjustment of the spindle housing (41) relative to the shank bock (39) is made possible by an adjustment bolt.
Patent EP-0358331-A2 (EP)
Inventor: KUSABA TAKESHI
IPC: G01B11/00
Filed: 1989-08-04
Abstract: An apparatus for detecting an edge position of an elongate article (1) in which an image of the edge portion (1a) of the object is picked up by a two-dimensional television camera (3) arranged above the article such that the scanning line of the television camera is made substantially parallel with the edge portion of the article, an image signal of the image of the edge portion is converted into a bivalent signal representing black and white pixels, the number of the black pixels in every scanning line is counted to obtain an histogram, and a scanning line number at which the number of the black pixels is abruptly increased in the histogram is detected as the edge position of the article.
Patent EP-0354817-A2 (EP)
Inventor: PETTIGREW ROBERT MARTIN
IPC: B41M3/00
Filed: 1989-08-11
Abstract: A method of bar code printing is disclosed which is characterised in that the bar code is printed directly onto packaging material associated with the product, and in that the ink used to produce the bar code is such that indicia constituting the bar code can be discriminated regardless of the background onto which the bar code is printed.
Patent EP-0360408-A2 (EP)
Inventor: CLARKE JAMES RYLAND
IPC: F02F1/42
Filed: 1989-08-15
Abstract: An engine induction system for reducing engine pumping losses provides for a minimum of two intake valves (30,32) per cylinder, a primary (30) and a secondary (32), with valve port deactivation means (38) associated with the secondary valves (32) to control air flow to them so that at light loads only air flows through the primary intake valves (30), the secondary valves (32) providing air flow at heavier loads, the primary intake valve openings being controlled so that no more than one primary valve is open at any one time; i.e., there is no overlap in openings between primary intake valves (30), which reduces pumping losses at light loads when intake manifold vacuum is high.
Patent EP-0356121-A2 (EP)
Inventor: NAKAYAMA MASAYUKI INTELLECTUAL
IPC: G07F7/08
Filed: 1989-08-16
Abstract: A transaction system consists of an apparatus (11) for executing a transaction, such as a sale of goods, using a portable pre-paid transaction card (73) as a form of payment. The value of the card is stored in re-writable machine readable form on magnetic tape (117) and visibly printed on a display area (115). In order to reduce the cost of issuing replacement cards when nearly exhausted, the apparatus is provided with means to increase the current value of a card when less than a predetermined area of the display area has been used up and to re-issue the card.
Patent EP-0358496-A2 (EP)
Inventor: QUINLAN MICHAEL MARTIN
IPC: G01M1/02
Filed: 1989-09-06
Abstract: A wheel balancer (1) comprises apparatus (16) for determining the radius of a rim (15) of a hub (10) of a wheel (9) and for determining the distance of the inner and outer side walls (12,13) of the hub (10) from a reference plane (18). A framework (17) which is pivotal downwardly over the wheel (9) to be balanced carries a pair of ultrasonic transducers (26,27) to determine distance of the sides (12,13) of the wheel (9) from the reference plane (18). A transducer (28) monitors the position of the framework (17). The distances monitored by the ultrasonic transducers (26,27) are stored in a microprocessor (60) against the corresponding positions of the framework (17) at intervals on movement of the framework (17). The ultrasonic transducers (26,27) detect a large change in distance from the reference plane (18) caused by the hub well periphery (30). The hub rim radius (15) is computed from the well periphery radius (30), while the distances of the side wall (12,13) from the reference plane (18) is obtained by looking up the stored values of distances which corresponds with the appropriate position of the framework (17) for the hub rim radius (15).
Patent EP-0365329-A2 (EP)
Inventor: YOSHIDA TADASHI
IPC: C07D307/60
Filed: 1989-10-19
Abstract: Compounds of the formula (I)
      wherein R is:
      and salts thereof, have antibiotic activity. The invention includes their use in providing therapeutic formulations, and microorganisms producing them.
Patent EP-0372795-A2 (EP)
Inventor: KOTIKALAPUDI SRIRAM
IPC: H04Q11/04
Filed: 1989-11-28
Abstract: An integrated voice and data network includes a multiplexer arranged with a voice queue for storing voice packets and a data queue for storing data packets. Voice packets are transmitted for a predetermined interval T1. Data packets are transmitted for a predetermined interval T2. The predetermined intervals T1 and T2 may be of different durations. A separate signaling queue can be provided for storing received signaling messages. If a signaling message is moved into the separate signaling queue during either interval T1 and T2, that interval is suspended and the transmission of voice or data packets is interrupted until the entire signaling message is transmitted. Then the interupted voice or data transmission is resumed for the remainder of the suspended interval T1 or T2. As an alternative, signaling messages can be transmitted during predetermined intervals between the intervals T1 and T2. Block dropping of low order voice bits also is described for reducing congestion at the node. The multiplexer guarantees a certain minimum bandwidth for voice traffic and data traffic. Concurrently, the multiplexer allows each type of traffic to utilize any spare bandwidth momentarily available because it is not being utilized by the other type of traffic. Signaling messages are serviced with very low delay and zero packet loss.
Patent EP-0377998-A2 (EP)
Inventor: IZUKAWA TSUKURU
IPC: C08K5/21
Filed: 1989-12-21
Abstract: The invention provides injection-molding thermoset­ting resin compositions obtained by adding a fluidity modifier, which is selected from the group consisting of melamine compounds, benzoguanamine compounds and urea com­pounds, to a phenolic resin, hexamethylenetetramine, a fil­ler and an additive. These resin compositions excellent thermal stability in a cylinder and curing property in a mold and can provide molded articles having superb mechani­cal strength.
Patent EP-0351298-A2 (EP)
Inventor: CREATON GERARD
IPC: A63C10/20
Filed: 1989-07-10
Abstract: This binding aims to provide a binding which makes it possible to adjust the position of the feet of the athlete both in terms of spacing and rotation and to permit slight elastic movements of the boot relative to the monoski. To this end, the base plate (2), comprising the means (4, 5) for holding the boot, is fixed elastically in an adjustable manner to a flexible plate (1) which is itself fixed to the monoski. <IMAGE>